Chapter 1 Evolution/Scientific Theory Flashcards
What is biology?
Scientific study of life
What is evolution?
Process of change that has transformed life on earth
What are the 5 unifying themes of biology?
- organization
- information
- energy and matter
- interactions
- evolution
What is an organelle?
Small organs and/or structures in the cell
What is the structure of life from least to largest?
molecules -> organelles -> cells -> tissues -> organs -> organ system -> organism -> populations -> communities -> ecosystems -> biosphere
What are emergent properties?
Properties that come from the arrangement and interactions of parts in a system
What is reductionism?
Reduction of complex systems to simpler components that are more manageable to study
What is systems biology?
Analysis of interactions among the parts of a biological system
What is smallest/lowest level of organization that is required for life?
The cell
What is in an eukaryotic cell?
- cell membrane
- cytoplasm
- nucleus
- dna
- enclosed membrane organelles
What is included in a prokaryotic cell?
- cell membrane
-dna
What is the genetic material found in the chromosomes?
DNA (deoxyribonucleic acid)
What are genes?
Encodes for info that builds the molecules synthesized within the cells
What does DNA control?
The development and maintenance of organisms
What are nucleotides?
4 kinds of chemical building blocks that makeup DNA molecules
What makes up nucleotides?
- sugar
- phosphate
- nitrogen
What is gene expression?
Process of converting information from gene to cellular product